Dads are so lowkey, it's no wonder that Father's Day sneaks up on us every year. (For the record, it's Sunday, June 18.) So if you're down to the wire and desperately in need of last-minute ideas, just know that we've been there as well. Here are 44 classic and cool gift ideas you can buy now and have shipped to his door before the holiday. Best of all? Everything's on sale.

AeroGarden

If Dad loves cooking with fresh herbs, then surprise him with an AeroGarden Harvest. This countertop gadget is extremely easy to use and can grow up to six plants with just a little water, fertilizer and seed pods (all of which are included). Simply enter the code "DADSGROW" at checkout to get an extra 10 percent off your purchase. You'll also get free shipping when you spend $50 or more!

Amazon

If there's one thing Dad appreciates, it's a practical gift. So why not show him how much you care with a problem-solving tool from Amazon? Right now, you'll find great deals on all kinds of gadgets, such as LED flashlight gloves for working in the garage, magnetic wristbands, contour gauges and multi-tool hammers. As always, Prime members get free two-day shipping with their purchase.

Brooklinen

Don't sleep on this incredible Father's Day gift idea. Help Dad get the rest he deserves and stay cool during those hot summer nights with new linen bedding from Brooklinen. If you shop now through June 13, you can get 20 percent off linen sheets, linen duvet covers, linen pillowcases and more, plus 10 percent off everything else on your first order.

Brümate

If he's happiest with a cold one in hand, then we suggest treating Dad to something from Brümate. Their triple-insulated, shatter-proof containers will keep his drink at the perfect temperature and prevent any accidents. And if you peruse their sale section right now, you'll find heavy-duty pint tumblers, beer bottle holders and stemless wine glass tumblers for 15 to 30 percent off. You'll also get free shipping when you spend $75 or more.

Calpak

If we had to guess, your well-traveled dad could probably use a new suitcase or carry-on come Father's Day. Luckily, you can get all of the above and more on sale at Calpak right now. Discounts range from 10 percent to a whopping 60 percent off. (Yes, really!) Best of all? You'll automatically qualify for free shipping when you spend $75 or more.

Cozy Earth

There are very few gifts that top a good night's sleep. Splurge on your very deserving father this year with luxurious bedding and loungewear from Cozy Earth. Right now, you can score 20-25 percent off sitewide, including their best-selling and ultra-breathable Bamboo Sheet Set that Oprah described as the "softest EVER." Treat him to total relaxation by pairing a sheet set with a piece from Cozy Earth's men's loungewear collection made from temperature-regulating viscose from bamboo fabric.

Pottery Barn

For the father with a timeless sense of style, we suggest something from Pottery Barn. Right now, you can get up to 50 percent off select furniture (like console tables and desks for his study) or find deals on Father's Day gifts like watch boxes, smoking cloches, bar carts, laptop cases, etc. Just place your order by June 13 to ensure that the gift arrives on time with standard shipping.

Solo Stove

For the outdoorsy dad, try a smokeless fire pit from Solo Stove. These sleek, one-piece burners are easy to operate, produce brilliant flames and emit almost no smoke. The Mesa, Ranger and Bonfire pits are even portable, so Dad can bring his new fire feature to the beach or favorite campsite. But here's the best part: If you shop right now, you can get 45 percent off fire pit bundles. No code required.

Target

Leave it to Dad to appreciate a quality vacuum. Knock his socks off (and then help him refresh the house) with a new multi-surface stick or carpet cleaner from Target. Right now, you can get up to 25 percent off certain name-brand vacuums, including iRobot, Dyson and Shark models. Best of all? Almost all of these items qualify for free shipping.

Terrain

If he's particularly proud of his green thumb, then delight Dad with a unique gardening gift from Terrain. They just added hundreds of new products to their sale section, including garden hoses, universal tool racks, copper bowl fire pits and even modern birdhouses. And if you place your order by June 6 at 10 AM EST, your gift will arrive on time with standard shipping.

Urban Outfitters

Do you have a hipster dad on your hands? You'll find the perfect one-of-a-kind gift for him (on sale!) at Urban Outfitters right now. For a limited time, you can get 30 percent off select home and tech items, like Kodak film cameras and milk preference mugs. Shipping is lightning-fast, too, and the discount is automatically applied at checkout.

Walmart

If he's handy around the house, then Dad would probably appreciate a new power tool or gadget from Walmart. Start by considering his area of expertise (Is he into woodworking? Or does he spend all his time in the garage, repairing cars?), or think of which tasks he does on a regular basis. You'll find plenty of gifts for 10 to 50 percent off, and you can ship said gift straight to his door or opt for free in-store pickup (where available).

Wayfair

Help Dad gear up to be the grill master of summer with a new gas grill, charcoal grill, smoker or griddle from Wayfair. Right now through 6/19, you can score up to 30 percent off a new grilling appliance from top brands like Weber, Blackstone, Kenmore, Cuisinart and more. Free shipping is included on pretty much every item, and it'll get to his door before Father's Day.